Aucatzyl patent expiry date?

I’m not finding a drug with the exact name “Aucatzyl.” Could you please confirm a couple details so I can help you locate the patent expiry date?

- Correct spelling or the active ingredient (INN) or brand name?
- Which country or region are you interested in (US, EU, UK, Japan, etc.)?
- Do you want the expiry date for the basic active-ingredient patent, a formulation/use patent, or any regulatory exclusivity (e.g., data or market exclusivity)?

General guidance (in case you just want the gist):
- Most pharmaceutical patents last about 20 years from the filing date of the earliest non-provisional application, but this can be extended by patent term adjustments (PTA) in some jurisdictions.
- In the EU, supplementary protection certificates (SPCs) can extend protection by up to 5 years beyond the basic patent.
- Regulatory exclusivities (e.g., pediatric exclusivity in the US, data exclusivity) can delay generic approval even after patent expiry.
- Exact expiry dates can vary by patent family and by country.

Sources you can check:
- US: USPTO PatFT for the exact patent(s) and Google Patents.
- EU: Espacenet (EPO) or the EU Patent Register; look for SPCs tied to the basic patent.
- Regulatory exclusivity: FDA Orange Book (for US) or EMA/European regulatory summaries.

If you can share the corrected name and target region, I can guide you to the specific patent family and its expiry date. If you’d like, I can also help you look this up step by step using online patent databases.